<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>一大坨</title>
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <style>
        body {
            margin: 0;
            padding: 0;
            background: #8b7dbe;
        }

        #canvas {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
        }

        .box2 {
            position: absolute;
            top: auto;
            bottom: 45px;
            left: 50%;
            width: 60px;
            height: 60px;
            margin-left: -30px;
            background: red;
            z-index: 90;
        }

        .fruit {
            position: absolute;
            background: #fff;
            z-index: 30;
            opacity: .8;
        }
    </style>
</head>
<body>
<div id="canvas"></div>
<div id="kep" class="box2"></div>

<script src="../zepto.min.js"></script>
<script src="mian.js"></script>
</body>
</html>